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Carmex Thread Turning External Insert - NPT - Right Hand - 16ER11.5NPTK20
| Thread Type | External |
| Thread Direction | Right Hand |
| Thread Form | NPT |
| Pitch | 11.5 |
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Description
Carmex Thread Turning External Insert - NPT - Right Hand - 16ER11.5NPTK20 is a high-performance cutting insert designed for external thread turning on NPT right-hand threads. Part of Carmex’s industry-leading thread turning range, it supports a broad spectrum of thread standards and is suitable for both routine and more demanding applications.
Its laydown triangular geometry provides solid support, efficient chip evacuation, and consistent thread quality across a wide range of tasks.
- Broad thread standard compatibility: Designed to cover the majority of common thread forms in use today, reducing tool changes and simplifying inventory while delivering reliable external threading results.
- Laydown triangular geometry for stability: The triangular laydown design offers robust support during cutting, promoting predictable dimensions and a smoother finish on external threads.
- Durable carbide construction for long tool life: Built to resist wear and fracture, enabling longer service intervals and fewer tool changes in both light-duty and demanding threading jobs.
This insert helps you achieve reliable external threading with fewer interruptions, supporting faster setups, consistent thread quality, and reduced rework. It’s a practical choice for production environments that require dependable performance across a variety of thread standards and application demands.
Part Numbers
- Protool Part Number
- 16ER11.5NPTK20
- Brand
- Carmex
- Category
- Thread Turning
Delivery
Free UK mainland delivery on orders over £50 ex VAT. In-stock items ordered before 4:30pm are dispatched the same working day. Full delivery information.
Returns
14-day returns on unused stock items in original packaging. Special-order and bespoke tooling is non-returnable. Read our returns policy.
Technical Support
Over 30 years of machining experience behind the counter. Call 01732 887334, Mon–Thurs 8:30–17:30, Fri 8:30–16:30.
Trade Accounts
Credit accounts, contract pricing and scheduled call-off orders available for trade customers. Apply for an account.
What time are Protool open?
We are open Monday to Friday between 8:30am and 5pm.
Do you offer Free Next Day delivery?
Yes! We offer Free Next Day delivery via Royal Mail Tracked 24 on all orders over £50 ex VAT*. We also offer Free DPD Local Next Day delivery on all orders over £100 ex VAT*.
We also offer the following:
- Royal Mail Tracked 24 — £5.90 (FREE on orders over £50 ex VAT*). Order before 4:30pm for next day delivery. No signature required.
- DPD Local Next Day — £8.00 (FREE on orders over £100 ex VAT*). Standard next day delivery to UK mainland addresses.
- Royal Mail Special Delivery — £12.50. Guaranteed delivery before 1pm the next working day.
- DPD Saturday Delivery — £25.00. Must be ordered on Friday before 4pm. Pre-12pm delivery.
For delivery to Scottish Highlands & Islands, Northern Ireland, Republic of Ireland, or overseas locations, additional charges apply. Please see our delivery page for full details, or call us on 01732 887 334.
*T's & C's and exclusions apply. Please see our delivery page for more information on all our services.
